Mr. Johnston needs a shelf to hold a set of textbooks. Each book is 3 3 4 cm wide. How many books will fit on an 86 cm wide shelf?

Please help

So it will contain the 25 books

Step-by-step explanation:

Each book is 3.34 cm wide.

Total width if shelf is 86 cm

The number of books it will contain = 86/3.34

= 25.748 books

So it will contain the 25 books

3.76%

step-by-step explanation:

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.